CN210176900U - Argon sealing device for argon sealing refined steel - Google Patents
Argon sealing device for argon sealing refined steel Download PDFInfo
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- CN210176900U CN210176900U CN201920619608.0U CN201920619608U CN210176900U CN 210176900 U CN210176900 U CN 210176900U CN 201920619608 U CN201920619608 U CN 201920619608U CN 210176900 U CN210176900 U CN 210176900U
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Abstract
The utility model discloses an argon sealing device for argon sealing refined steel, which belongs to the field of argon sealing devices for refined steel argon stations and comprises a supporting part, an annular pipe, an injection device and a fixing device; the supporting part sets up inside the dust cover in the argon blowing station, and the ring canal is fixed on the supporting part, and fixing device fixes on the ring canal, fixing device perpendicular to downwards the radial horizontal plane of ring canal, a plurality of injection apparatus of ring canal inscription, injection apparatus downwards with the radial horizontal plane of ring canal has a contained angle, injection apparatus keeps away from ring canal one end tip and articulates fixing device is last, injection apparatus keeps away from ring canal one end tip and is in fixing device is last can freely angle regulation, the utility model discloses simple structure, operating requirement hang down, little to the technology influence of equipment transformation dynamics, improve molten steel quality and have certain society and economic benefits.
Description
Technical Field
The utility model relates to an argon sealing device, in particular to an argon sealing device for argon sealing refining steel, which is used for blowing argon sealing field of argon station after furnace.
Background
The converter-argon blowing station process is a simple external refining method for degassing molten steel and removing non-metallic inclusions, and has the advantages of simple process, cheap equipment and remarkable refining effect. The realization process is that argon is blown to the bottom of the ladle when the converter taps steel, the ladle is moved to an argon blowing station treatment station after tapping is finished, slag is added, ferroalloy is added according to the component requirements of steel types and wire feeding treatment is carried out, and the ladle bottom blows argon in the whole argon blowing station. However, since argon is blown at the bottom of a ladle in an argon blowing station to stir molten steel, and slag, ferroalloy and wire feeding treatment are added to the surface of the molten steel, the chemical reaction in the molten steel is severe, and a large amount of smoke is generated, so that the method is an important area for secondary dust removal in a converter steelmaking plant. After tapping of the converter, the steel ladle needs to be blown with argon and calmed in an argon blowing station, and in the process, the steel ladle generates certain smoke and wraps a large amount of dust, so that the environment is polluted, and a dust hood or other devices are additionally arranged in the argon blowing station and the LF furnace in consideration of environmental protection. The dust hood and the smoke dust suction device on the LF furnace have strong suction capacity, and the smoke gas is collected while the air outside the furnace is sucked into the furnace.
The theoretical research on the influence of argon-blowing stirring on nitrogen increase of molten steel shows that oxidizing molten steel does not increase nitrogen, and deoxidized molten steel obviously absorbs nitrogen. After tapping of the converter, a deoxidizer is added for deoxidation, omega (o) in steel is rapidly reduced, and the nitrogen absorption tendency of molten steel is obviously increased. At the moment, the argon blowing stirring operation is started, the argon blowing stirring intensity is strictly controlled, the slag layer cannot be blown open, the molten steel with good deoxidation is prevented from being exposed in the atmosphere, the molten steel is prevented from being exposed as far as possible in the steel ladle transportation process and the casting process, and the molten steel is prevented from being greatly increased in nitrogen. Because the flow of argon blown from the bottom of the ladle is changed, the nitrogen is slightly increased in the process of the molten steel from the LF outlet station to the continuous casting platform. Sources of nitrogen include; nitrogen in some feedstocks. Including carburant, various ferroalloys, and the like; in the oxygen steelmaking process, the nitrogen source comprises molten iron, scrap steel, oxygen and nitrogen in stirring gas; during tapping, the molten steel is exposed to the air as it flows into the ladle. So as to increase nitrogen in the molten steel; other sources of nitrogen. Including atmosphere entering molten steel through ladle slag, and the like; in the continuous casting process, effective sealing is not realized, and air enters molten steel to cause nitrogen increase. An auxiliary sealing device is needed for effectively isolating oxygen and nitrogen and achieving a good dust removal effect.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an argon sealing device for argon sealing refined steel, which can prevent secondary oxidation of molten steel and control the loss of argon gas.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides an argon sealing device of argon seal refined steel which characterized in that: comprises a supporting part, a ring pipe, a spraying device and a fixing device; the support part is arranged in a dust cover in the argon blowing station, the annular pipe is fixed on the support part, the fixing device is fixed on the annular pipe, the fixing device is downward perpendicular to the radial horizontal plane of the annular pipe, a plurality of injection devices are connected in the annular pipe, an included angle is formed between each injection device and the radial horizontal plane of the annular pipe, the end part of each injection device, far away from the annular pipe, is hinged to the fixing device, and the angle of each injection device, far away from the end part of the annular pipe, can be freely adjusted on the fixing.
The technical scheme of the utility model is further improved in that each group of injection devices comprises a pair of metal hoses and a pair of nozzles, the inner side of the ring pipe is fixed with the metal hoses and the metal hoses are communicated with each other, the nozzles are communicated with the inner parts of the metal hoses and hinged on the fixing device, the angle of the nozzles can be freely adjusted on the fixing device, and the nozzles are spaced at a certain distance.
The technical proposal of the utility model is further improved in that the injection devices are evenly distributed on the ring pipe, and the included angle between the nozzle outlet and the device downward and the radial horizontal plane of the ring pipe is 60 degrees.
The technical proposal of the utility model is further improved in that the injection device has 4 groups.
The technical proposal of the utility model is further improved in that the nozzle is a continuous casting nozzle.
The technical proposal of the utility model is further improved in that a protective net cover is sleeved outside the nozzle.
The technical proposal of the utility model is further improved in that the fixing device comprises a right-angle frame mainly composed of a fixing rod and a transverse rod, the upper end of the fixing rod of the right-angle frame is vertically connected with the lower end of the ring pipe, and the transverse rod end part of the right-angle frame is provided with a hinged part hinged with the nozzle.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
the utility model discloses use injection apparatus to spray argon gas, form argon gas air curtain, prevent effectively that the molten steel from blowing the oxidation when argon stirring at the bottom, improving the molten steel quality. Because the argon curtain is arranged in the dust hood, the damage of argon to people is effectively controlled. The supporting part sets up inside the dust cover, and the argon gas that erupts is finally collected and is taken away, has avoided the argon gas to reveal healthy influence to the worker. The ring pipe is fixed on the supporting part, and ring pipe inscription injection apparatus, injection apparatus and ring pipe horizontal plane have an contained angle downwards, can form argon gas curtain, do not receive dust collector to influence. The spraying devices are uniformly distributed on the ring pipe, so that the phenomenon that smoke dust is settled at dead angles of airflow and the dust removal device is interfered can be avoided. When the argon injection device forms an included angle of 60 degrees with the radial horizontal plane of the ring pipe downwards, the working effect of the argon gas curtain is most stable. The spraying device is fixed by the fixing device, the spraying angle can be flexibly adjusted, and the spraying angle can be adjusted according to actual needs. Four groups of injection devices are arranged, and the distance of each group of injection devices on the ring pipe is equal, so that the flow velocity imbalance of argon can be avoided. Each group of the spraying devices is provided with two nozzles, and the air curtain formed by the two nozzles can have a certain cross area, so that the effect is better. The nozzle is a continuous casting nozzle, is convenient to replace and low in modification cost. The outer side of the nozzle is provided with a protective net cover, so that the phenomenon that smoke dust is attached to the nozzle to block the nozzle is avoided, and the service life of the nozzle is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side cross-sectional view of the present invention;
wherein, 1, a support part, 2, a ring pipe, 3, a spraying device, 4 and a fixing device.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in figures 1 and 2, an argon sealing device for argon sealing refined steel comprises a support part 1, a ring pipe 2, a spraying device 3 and a fixing device 4, wherein the support part 1 is arranged in a dust cover in an argon blowing station, the ring pipe 2 is fixed on the support part 1, the fixing device is fixed on the ring pipe, the fixing device is downward vertical to the radial horizontal plane of the ring pipe, a plurality of spraying devices 3 are connected in the ring pipe 2, the spraying devices 3 are arranged at an included angle with the radial horizontal plane of the ring pipe 2, one end of each spraying device, which is far away from the ring pipe, is hinged on the fixing device, the end of each spraying device, which is far away from the ring pipe, is freely adjustable in angle on the fixing device, the support part is fixed inside the dust cover by a metal column, the other end of the support part is fixedly welded or fixed on the ring pipe, the ring pipe 2 is made of a tube with good air tightness, the outer side of the ring pipe 2 is fixed inside the dust cover by the support part 1, the spraying devices 3 are fixed on the inner side of the ring pipe 2, the ring pipe 3 is communicated with the ring pipe 2, the argon inlet hose is also communicated with an argon blowing hose, the argon blowing hose is connected with a nozzle fixed on the ring pipe, the nozzle is connected with a nozzle, the nozzle fixed on the nozzle, the nozzle is connected with the nozzle, the nozzle is connected with the nozzle, the nozzle is connected with the nozzle, the nozzle is connected with the.
The nozzle is a continuous casting nozzle, the equipment cost is reduced by modifying the nozzle for the continuous casting machine, and the argon flow can be flexibly adjusted. The argon curtain formed when the nozzle included an angle of 60 deg. downwards with the horizontal plane formed by the loop 2 was relatively stable. The outside cover of nozzle has the protection screen panel, avoids the smoke and dust to adhere to on the nozzle, blocks up the nozzle.
The argon sprayed from the nozzle is sprayed downwards to a slag layer on the surface of the molten steel to form an inert gas protective layer on the surface of the molten steel, so that molten steel splashing caused by large flow of bottom-blown argon is avoided, and the molten steel is oxidized by contacting with air. The argon gas curtain pushes the smoke dust raised by bottom blowing argon gas to the central position of the ring pipe, so that the dust removal device can conveniently suck the smoke dust.
Claims (7)
1. The utility model provides an argon sealing device of argon seal refined steel which characterized in that: comprises a support part (1), a ring pipe (2), a spraying device (3) and a fixing device (4); the support part (1) is arranged in a dust cover in an argon blowing station, the circular pipe (2) is fixed on the support part (1), the fixing device (4) is fixed at the lower end of the circular pipe (2), the circular pipe (2) is internally connected with a plurality of injection devices (3), each injection device (3) downwards forms an included angle with the radial horizontal plane of the circular pipe (2), one end part of each injection device (3), which is far away from the circular pipe (2), is hinged to the fixing device (4), and the angle of each injection device (3), which is far away from the end part of one end of the circular pipe (2), can be freely adjusted on the fixing device (4).
2. An argon sealing device for sealing refined steel by argon according to claim 1, characterized in that: each group of spraying devices (3) comprises a pair of metal hoses and a pair of nozzles, the metal hoses are fixed on the inner sides of the ring pipes (2), the metal hoses are communicated with the ring pipes (2), the nozzles are communicated with the interiors of the metal hoses and hinged on the fixing devices (4), the nozzles can freely adjust angles on the fixing devices (4), and the nozzles are spaced at a certain distance.
3. An argon sealing device for argon sealing refined steel according to claim 2, characterized in that: the spray devices (3) are uniformly distributed on the ring pipe (2), and the included angle between the nozzle outlet and the radial horizontal plane of the ring pipe (2) is 60 degrees.
4. An argon sealing device for argon sealing refined steel according to claim 3, characterized in that: the injection devices (3) have 4 groups.
5. An argon sealing device for sealing refined steel with argon according to claim 4, characterized in that: the nozzle is a continuous casting nozzle.
6. An argon sealing apparatus for argon sealing of refined steel according to claim 4 or 5, characterized in that: the nozzle is sleeved with a protective net cover.
7. An argon sealing device for sealing refined steel with argon according to claim 6, characterized in that: the fixing device (4) comprises a right-angle frame mainly composed of a fixing rod and a transverse rod, the upper end of the fixing rod of the right-angle frame is vertically connected to the lower end of the ring pipe (2), and a hinged portion is arranged at the end portion of the transverse rod of the right-angle frame and hinged to the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920619608.0U CN210176900U (en) | 2019-04-30 | 2019-04-30 | Argon sealing device for argon sealing refined steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920619608.0U CN210176900U (en) | 2019-04-30 | 2019-04-30 | Argon sealing device for argon sealing refined steel |
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| Publication Number | Publication Date |
|---|---|
| CN210176900U true CN210176900U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920619608.0U Active CN210176900U (en) | 2019-04-30 | 2019-04-30 | Argon sealing device for argon sealing refined steel |
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| CN (1) | CN210176900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749613A (en) * | 2022-04-26 | 2022-07-15 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Argon blowing protection ladle cover for metal smelting |
-
2019
- 2019-04-30 CN CN201920619608.0U patent/CN210176900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749613A (en) * | 2022-04-26 | 2022-07-15 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Argon blowing protection ladle cover for metal smelting |
| CN114749613B (en) * | 2022-04-26 | 2023-10-31 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Argon blowing protection ladle cover for metal smelting |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221108 Address after: 056300 east of Chongyi village, Shangtuan urban and rural areas, Wu'an city, Handan City, Hebei Province Patentee after: Jinan Iron and Steel Group Co.,Ltd. Address before: 056300, Hebei, Handan province Wuan City South Ring Road South Patentee before: HEBEI WENFENG IRON AND STEEL Co.,Ltd. |
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| TR01 | Transfer of patent right |